22210201220221 has 16 divisors (see below), whose sum is σ = 27340412070400. Its totient is φ = 17615924586288.

The previous prime is 22210201220213. The next prime is 22210201220239. The reversal of 22210201220221 is 12202210201222.

It is not a de Polignac number, because 22210201220221 - 2³ = 22210201220213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210201220521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1941784911 + ... + 1941796348.

It is an arithmetic number, because the mean of its divisors is an integer number (1708775754400).

Almost surely, 2^{22210201220221} is an apocalyptic number.

It is an amenable number.

22210201220221 is a deficient number, since it is larger than the sum of its proper divisors (5130210850179).

22210201220221 is a wasteful number, since it uses less digits than its factorization.

22210201220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883581328.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22210201220221 its reverse (12202210201222), we get a palindrome (34412411421443).

The spelling of 22210201220221 in words is "twenty-two trillion, two hundred ten billion, two hundred one million, two hundred twenty thousand, two hundred twenty-one".